The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 27, 2001

Filed:

Nov. 30, 1998
Applicant:
Inventors:

Teruhiko Hineno, Kanagawa, JP;

Asa Kimura, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 6/00 ; A61K 7/00 ; A61K 3/174 ;
U.S. Cl.
CPC ...
A61K 6/00 ; A61K 7/00 ; A61K 3/174 ;
Abstract

Provided are a composite powder comprising a core particle which is spherical and has a refractive index of from 1.40 to 1.60, and a coating component which is coated on the surface of the core particle in film form and has a refractive index of from 2.00 to 2.90, and a coloring composition containing the composite powder. The composite powder or coloring composition is coated on a coating surface to form a composite powder layer. The composite powder layer causes light interference to exhibit a color on the surface. The composite powder and coloring composition are used in various fields.


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